There is many of them that I listed in another post.
For meditation ( which is used alot to visit fae) :
amethyst, ametrine, aqua aura, aquamarine, azurite, celestite, clear quartz, dumortierite (blue quartz), labradorite, lapis, sea shells, selenite, snow quartz, sugilite, topaz ..etc are some examples
For auras :
ametrine, citrine, dravite, epidote (emotional body aura), iolite, labradorite, nuumite (clearing), quartz, rutilated quartz
For communication : amazonite, apatite, blue lace agate, blue onyx, blue tigers eye, blue topaz, copper, emerald, euclase, kunzite, labradorite, quartz, turquoise, ulexite
For third eye ( which can help see the auras and fae) :
amazonite, amethyst, apatite, apophyllite, azurite, chevron amethyst, charoite, indicolite, iolite, lapis, moonstone, picture rock, purple fluorite, sapphire, scolecite, sodalite, spinel (dark blue), sugilite, tanzanite
You can buy some of these online, from the same site with the information at http://www.crystalsandjewelry.com
(Here is where to identify some stones : http://www.crystalsandjewelry……ation.html )